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/*-
* ============LICENSE_START=======================================================
* ONAP - SO
* ================================================================================
* Copyright (C) 2017 - 2019 Bell Canada.
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============LICENSE_END=========================================================
*/
package org.onap.so.client.cds;
import static org.junit.Assert.*;
import static org.mockito.Mockito.*;
import io.grpc.inprocess.InProcessChannelBuilder;
import io.grpc.inprocess.InProcessServerBuilder;
import io.grpc.stub.StreamObserver;
import io.grpc.testing.GrpcCleanupRule;
import io.grpc.util.MutableHandlerRegistry;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicReference;
import org.junit.After;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import org.mockito.Mock;
import org.onap.ccsdk.cds.controllerblueprints.common.api.ActionIdentifiers;
import org.onap.ccsdk.cds.controllerblueprints.processing.api.BlueprintProcessingServiceGrpc.BlueprintProcessingServiceImplBase;
import org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceInput;
import org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceOutput;
@RunWith(JUnit4.class)
public class CDSProcessingClientTest {
@Rule
public final GrpcCleanupRule grpcCleanup = new GrpcCleanupRule();
@Mock
private CDSProcessingListener listener = spy(new TestCDSProcessingListener());
private CDSProcessingHandler handler;
private CDSProcessingClient client;
private final MutableHandlerRegistry serviceRegistry = new MutableHandlerRegistry();
private final List<String> messagesDelivered = new ArrayList<>();
private final CountDownLatch allRequestsDelivered = new CountDownLatch(1);
private final AtomicReference<StreamObserver<ExecutionServiceOutput>> responseObserverRef = new AtomicReference<>();
@Before
public void setUp() throws Exception {
String serverName = InProcessServerBuilder.generateName();
grpcCleanup.register(InProcessServerBuilder.forName(serverName).fallbackHandlerRegistry(serviceRegistry)
.directExecutor().build().start());
handler = new CDSProcessingHandler(listener);
client = new CDSProcessingClient(InProcessChannelBuilder.forName(serverName).directExecutor().build(), handler);
final BlueprintProcessingServiceImplBase routeChatImpl = new BlueprintProcessingServiceImplBase() {
@Override
public StreamObserver<ExecutionServiceInput> process(
StreamObserver<ExecutionServiceOutput> responseObserver) {
responseObserverRef.set(responseObserver);
StreamObserver<ExecutionServiceInput> requestObserver = new StreamObserver<ExecutionServiceInput>() {
@Override
public void onNext(ExecutionServiceInput message) {
messagesDelivered.add(message.getActionIdentifiers().getActionName());
}
@Override
public void onError(Throwable t) {
}
@Override
public void onCompleted() {
allRequestsDelivered.countDown();
}
};
return requestObserver;
}
};
serviceRegistry.addService(routeChatImpl);
}
@After
public void tearDown() {
client.close();
}
@Test
public void testClientCst() {
new CDSProcessingClient(listener);
}
@Test
public void testSendMessageFail() throws Exception {
ExecutionServiceInput fakeRequest1 = ExecutionServiceInput.newBuilder()
.setActionIdentifiers(ActionIdentifiers.newBuilder().setActionName("request1").build()).build();
CountDownLatch finishLatch = client.sendRequest(fakeRequest1);
responseObserverRef.get().onError(new Throwable("fail test"));
verify(listener).onError(any(Throwable.class));
assertTrue(finishLatch.await(1, TimeUnit.SECONDS));
}
@Test
public void testSendMessage() throws Exception {
ExecutionServiceInput fakeRequest1 = ExecutionServiceInput.newBuilder()
.setActionIdentifiers(ActionIdentifiers.newBuilder().setActionName("request1").build()).build();
ExecutionServiceOutput fakeResponse1 = ExecutionServiceOutput.newBuilder()
.setActionIdentifiers(ActionIdentifiers.newBuilder().setActionName("response1").build()).build();
ExecutionServiceOutput fakeResponse2 = ExecutionServiceOutput.newBuilder()
.setActionIdentifiers(ActionIdentifiers.newBuilder().setActionName("response2").build()).build();
CountDownLatch finishLatch = client.sendRequest(fakeRequest1);
// request message sent and delivered for one time
assertTrue(allRequestsDelivered.await(1, TimeUnit.SECONDS));
assertEquals(Collections.singletonList("request1"), messagesDelivered);
// Let the server send out two simple response messages
// and verify that the client receives them.
responseObserverRef.get().onNext(fakeResponse1);
verify(listener).onMessage(fakeResponse1);
responseObserverRef.get().onNext(fakeResponse2);
verify(listener).onMessage(fakeResponse2);
// let server complete.
responseObserverRef.get().onCompleted();
assertTrue(finishLatch.await(1, TimeUnit.SECONDS));
}
}
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